What is an ion?
A charged particle.
An atom with a different number of neutrons.
A substance formed from only one type of atom.
Chlorine is in Group 7. What charge would a chloride ion have?
-
2-
3-
Covalent bonding happens between which type of atoms?
Metal.
Non-metal.
Metal and non-metal.
Which of the following statements about ionic bonding is correct?
Ionic bonding is weak and requires very little energy to break.
Ionic bonding is the electrostatic attraction between oppositely charged ions.
Ionic bonding happens when atoms share electrons.
In covalent bonding, a double covalent bond is formed by?
A single shared pair of electrons.
Two shared pairs of electrons.
Three shared pairs of electrons.
What is a molecule?
Two or more atoms covalently bonded.
Two substances mixed together that can be easily separated.
A specific quantity of atoms or particles of any substance.
Which of the following shows ammonia?
Which of the following statements about metallic bonding and structure is incorrect?
Metallic bonding is the attraction between oppositely charged ions.
Metal ions from a regular pattern called a lattice.
Outer shell electrons are delocalised and free to move throughout the structure.
Which of the following statements about cations is correct?
They have more electrons than protons.
They have more protons than electrons.
They have the same number of protons and electrons.
Oxygen atoms become oxide ions with a charge of 2-. How does this occur?
They gain 2 electrons.
They lose 2 electrons.
They share 2 electrons.